Appliance for foundry molds



H. McCORKEL.

- APPLIANCE FOR FOUNDRY MOLDS.

APPLICATION FILED MAY9, 1919.

1,405,929. Patenteq Feb. 7, 1922.

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H. McCORKEL.

APPLIANC E FOR FOUNDRY MOLDS. APPLICATION FILED MAYQ. 1919.

1,405,929, Patented Feb. 7, 1922.

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HARRY MGCORKEL, 033 LAPORTE, INDIANA.

APPLIANCE FOR FOUNDRY MOLDS.

Specification of Letters Patent.

Patented Feb. '7, 1922.

Application filed May 9, 1919. Serial in. 295,892.

ToaZZ whom it may concern.

Be it known that I, .HARRY McConnell, a citizen of the United States, and a resident of the city of Laporte, county of Laporte, and State of Indiana, have invented certain new and useful Improvements in Appliances for Foundry Molds, of which the following is a specification.

My invention relates to an appliance for foundry molds, and has for its object the provision of a device which will facilitate the handling and operation of a foundry mold. A further object is the provision of embodying the invention,

Fig. 2, is a sectional view of one of the devices applied, with parts removed,

Fig. 3, 1s a perspective view of a mold embodying the invention, showing thercope and pattern late rolled back,

Fig. 4, a ront elevation of thepattern plate embodying part of the invention,

' Fig. 5,- a top plan view of one part of the p invention, and I Fig. '6, a top plan View of a co-operating part of the invention.

In foundry molds, it has been difiicult to provide a means of pivotally connecting the cope of the mold with the drag of the'mold, inasmuch as the pattern plate is adapted to be engaged between these two parts. By my invention I have provided ameans whereby the cope and the drag of the mold may be swingingly loosely connected to an additional means, whereby the pattern plate is adapted to swing vertically relatively to the drag of the mold.

The cope 8 of the mold has secured to one flange-like member 15.

side the trunnion-bearing member 9, having a base 10, which has a flange-like member 11 extending at right angles thereto. One end of the member 9 has projecting, from opposite sides thereof, trunnions 12, the portion of the member 9 from which said trunnions project being rounded to form a cylindrical portion 12. The members 10 and 11 have openings 13 projecting therethrough, through which suitable fastening means are adapted to pass in order to secure the member 9 to the cope 8. Securely fastened to the drag 7 of the mold by suitable fastening means which project through the open ings 13, is a member 14, having at its base a flange-like member 16, said flange-like member 16 having projecting at right angles thereto and made integral therewith a adapted to e e-operate with the member 9 and consequently is formed bifurcate, so as to provide the elements 14' which are spaced from each other, said elements 14 forming the cheeks of a trunnion plate at the outer ends of which are formed grooves or sockets 17 adapted to receive and engage the trunnions 12, the portion 12 being engaged between the outer ends of the members 14'. Adjacent the end of the member 14 at which the member 16 appears, is a secondary socket or groove 22. Provided in the member 9is a socket or groove 23, which is adapted to register with the socket or groove 22 when the memberll is in engagement with the member 15 and the trunnions 12 engaged in the sockets 17 The pattern late 18 is formed with a flange 19 projecting laterally therefrom, said flange 19 being slotted adjacent one end, thereby forming thespaces 20 therein. Securely fastened to the flange 19 and traversing the slotted portion 20 are cylindrical pins 21,

said pins 21 being adapted, when said pat tern 18 is in operative position within the drag 7 to rest in and be engaged by the sockets 22 formed in the members 14.

By this arrangement it is evident, as shown in Fig. 3, that the pattern will be pivotally mounted upon the pins 21 when said pins 21 are engaged by the slots 22, thereby affprding a means of swinging the pattern plate on said pins 21 as an axis relatively to the drag 7. It is also evident that the cope is pivotally mounted on the drag 7 when the trunnions 12 are resting in and engaged by the socket or groove17. When the cope, drag and pattern are assembled in operative position, as shown in Fig. 1, it is evident that the pattern plate is mounted upon the pins 21 as an axis, said pins resting in the socket or groove 22 which is formed in membersl'. It is also apparent that the cope is mounted upon the pins 21 as an axis, said pins 21 being engaged by thesockets or grooves 23 which are formed in the members 9. Consequently, upon raising the forward end of the cope 8, the said cope will swing upon the pins 21 as an axis, inasmuch as the trunnions 12 are raisedclear of the base of the sockets 17 while the cope is in this position. Upon raising the cope upwardly at its forward end, the trunnions 12 are moved downwardly into engagement with the member 14 at the base of the sockets 17. As

soon as the trunnions come into contact with until the trunnions 12 came into contact with the members 14:. Further upward swinging of the forward ends of these members would then cause the cope 8 to swing upon the trunnions 12 as an axis and would cause the pattern plate to continue to swing upon the pins 21 as an axis. Consequently, it is seen that I have provided a means of mounting the cope upon the drag of the mold, whereby said cope will be mounted upon an axis and adapted for swinging movement relative to the drag when said pattern plate is not in position in the drag. By my invention I have also provided means whereby the cope will be pivotally' mounted upon the'drag of the mold when the pattern plate is in 0p 7 erative position in the mold. By this means I have provided a device by which the cope may be removed from the drag of the mold vertically upward in a swinging position, entirely free from any lateral movement, inasmuch as the portions 12, being snugly engaged by the outer ends of the members 1 1, will serve to prevent lateral movement of the cope while the same is swinging upward. After forming an impress in the sand which is contained in the cope and the drag, it is necessary to remove the pattern plate before pouring, and in order to do this it is necessary to remove the cope from its assembled position with the drag. In raising the cope from the drag, it frequently happens that a slight lateral motionis given to the cope, with the result that the sand is broken loose by coming into contact with the pattern or from the naturally incidental thereto in such a method. then arises of repairing whatever damage has been done to the imprint made in the sand, with the consequent result of an expenditure of time and material. It frequently happens that the damage occasioned by such a method is'such as to be irreparable, and thereby the necessity of forming a new impression: arises. These difliculties are eliminated by the provision of the device just described, and I have thereby greatly increased the efficiency of a foundry mold.

While I have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and modification without departing from the spirit of the invention. I, therefore, do not wish to be limited to the precise details of construction set forth, but

The necessity desire to avail myself of such variations-and modifications as come within the scope of the appended claims. Having described'my invention, what I claim as new and desire to'secure byLettcrs Patent is p 1. In combination with a foundry mold, a pattern plate; flanges on said plate adapted to be engaged between the cope andthe drag, one of said flanges being slotted adjacent opposite ends; axes secured to said flange and traversing said slots; meanscooperating with said axes, whereby the cope and said plate are adapted to swing vertically on said axes; and secondary axes secured to said cope, co-operating with said means upon which said cope is adapted to swing, said cope swinging clear of said{ axes upon said secondary axes coming intocontact with said means, substantially as described; 7 p

2. In combination with a foundry mold, patternplate'; axis secured to" one side of said plate; a member fastened at one. e'n'd'to the cope of said'mold, said member having a socket adjacent said end adapted'to'en gage said axis; trunnions projecting from opposite sides of the opposite end of said member; and a trunnion plate fastened at one end to the drag of said mold, said'plate having a socket adjacent said end adapted to engage said axis, and having a socket adjacent the opposite end adapted toengage said trunnions, substantially as described.

8. In a foundry mold, means secured to said mold, whereby said cope is adapted to swing upwardly from the drag, said cope being pivoted at one point during aportion of said movement, and pivoted at another point during the remainder of said movement, substantially as described.

4:. In a mold containing a pattern plate, means for'swinging the cope and said plate upwardly from the drag, said-cope swinging, name to this specification in the presence of during a portion of 1ts movement, on the two subscribing witnesses.

same axes with said pattern plate and during the remainder of its movement on an HARRY MOCORKEL" 5 axis independent of said pattern, substan- Witnesses:

tially as described. LEE L. OSBORN, w

In testimony whereof I have signedv my NATE G. LINE. 

